Grease-pump nozzle



H. M. BOE

GREASE PUMP NOZZLE July 23, 1929.

' Filed Sept. 25. 1926 Patented July 23, 1929.

UNITED STATES 1,721,726 PATENT OFFICE.

HANS M. BOE, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR TO BOE MANUFACTURING COMPANY, OF MINNEAPOLIS, MINNESOTA, A CORPORATION OF MINNESOTA.

GREASE-PUMP NOZZLE.

Application filed September 25, 1 926.

This invention relates to improvements in giease pump nozzles adapted for use at serv-- ice stations and particularly adapted for use in conjunction with filler openings of transmission gear housings of automobiles..

Objects are to provide a device of this character which can be positively held within the filler opening of a gear housing or like receptacle during the filling operation; to provide a device which can be readily placed in position, to be held by gravity thereafter; to provide a device having no objectionable projections, but which depends for its loclziingl ability only on the cooperation of a pair of suhstantially smooth, spaced extensions, substantially parallel, one being of tubular formation.

Features of the device include the construction providing two spaced substantially parallel extensions adapted to engage an opening, to positively hold the device against accidental withdrawal; the construction pioviding a cap for the opening during the filling operation; and the construction of the valve operating and positioning means.

Objects, advantages, and features will be set forth in the description of the drawings forming part of this specification, and in said drawings,

Figure 1 is a vertical sectional view .shouing the device positioned in a filler opening of small diameter;

Figure 2 is an end view;

Figure 3 is a detail showing the means for locking the valve control stem in open position' Figure 1 is a view showing both extensions, straight.

The device comprises a body portion 1 suitably shaped for the purpose in hand, and providing a hollow chamber 2 and an oil delivery passage 3 leading thereinto. A suitable hose 4 is connected as shown, preferably by threading. A nozzle is indicated at 5, and in Figure 1 is shown, bent intermediately at a point adjacent the end face of the body, the concaved side 6 of the bend facing downwardly, when the device is positioned, and being opposingly related to a straight eXtension 7. This extension makes an acute angle with the axis of the passage 3. The device thus provides two spaced substantially parallel extensions, one having an intermediate bent portion and being hollow and the other being straight. In Figure 4, the extensions Serial No. 137,753.

are both straight. It will be noted that the outer end 8 of the nozzle is' substantially straight, and this portion is substantially parallel with the inner straight surface of the extension 7. The end face 9 of the body portion is arranged at an angle tov adapt it to close the opening when the device is in operative position therewithin. This surface is of an area adapted to cap or close the largest filler opening with which the device will be used, thus preventing that overflow or leakage which ordinarily takes place during the filling operation.

'A ball valve 10 closes the end of the nozzle and a rod 11 connects with the ball valve and pivot-ally as at 12, with a translatable stem 13 suitably held in the body portion. A compression spring 14 surrounds the stem as shown and engages a cioss-pin 15 to normally hold the stem in valve-closing position. Suitable packing is provided around the stein held compressibly in place by an element 16.

In order to hold the valve in its open position, during the filling operation, a locking device is provided which comprises a plate 18 angularly bent to provide an extension parallel with the axis of the stem and engageable at the outer surface of the body. This extension has a bayonet slot 19 therein and a screw 2O transverses the bayonet slot and engages the body. When the stem is translated forwardly and slightly rotated, the screw may be made to engage the right-angular ortion 21 of the bayonet slot to hold the ball valve 10 in the position shown in dotted lines in Figure 1.

It will be not-iced that in Figure 1, the concave side of the bend faces toward the straight extension, and it will be further noted that the outer portion of the nozzle is substantially straight and substantially parallel with the straight extension 7.

The device of Figure 1 is positioned by introducing the straight portion 8 of the nozzle, and then thrusting forwardly until the outer terminal of the element 7 engages the outer side of the receptacle, then giving a rotative movement in an upward direction while the terminal of the element 7 slides downwardly along the outer surface of the receptacle. The bent portion allows this rotative motion. lVhen the device reaches the position shown in full lines in the figure, it is held by gravity with the under surface of the nozzle resting against the inner edge of the related to the tubular element and bend there.

in, and this projection extends outwardly in substantially parallel relation to the outer straight portion of the tubular element.

The device can be very quickly and easily dropped into position wit-hin the filter opening, to be positively hield therein by gravity action. It will be further noted that the projections are substantially smooth. Moreover the device is cheap to manufacture.

The essential feature of the invention resides in the provision of two substantially straight and substantially parallel extensions, permitting a device of the character described to be dropped into position within a filling opening, with the extension straddling the opening'` one lying at the inner and one at the outer side of the receptacle. Y

I claim as my invention:

l. A hollow body having' a tubular element bent at a point adjacent the body and having an outer substantially straight portion, said tubular element communicating with the body, and said body furtherhaving a projection opposingly related to the tubular element and concave side of the bend therein, and extending outwardly in a direction .substantially parallel with the outermost straight portion of the tube.

2. A hollow body having a tubular eXtension projecting outwardly therefrom and bent at a point adjacent and outside of the body and communicating with the body and having an outermost portion substantially straight, said body further having a projection opposingly related to the tubular element and bend therein, and extending outwardly in substantially parallel relation to the outer straight portion of the tubular element.

3. A hollow body having a tubular element bent at a point adjacent the body, said tubular element communicating with the body, and said body further having a projection opposingly related to the tubular element and concave side of the bend therein, and 'extending in a direction'substantially parallel with the tubular element.

In witness whereof, I have hereunto set my hand this 23rd day of September, 1926.

' HANS M. BOE. 

